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PVS-LVS

archive
archive over 14 years ago

Hi All

Im new to run pvs-lvs can i know how to run lvs and what are the input files required for it and how i have to check the results.

Im getting some warnings while running it

I used the following input files

postrouted netlist,cdl files,gds (merged all std cell and rams gds files),hcell.txt(contains all head cell names two times)

 

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Top Replies

  • Kari
    Kari over 14 years ago +1
    The FILL cells are physical-only cells, they are not connected to anything in the netlist.
  • Kari
    Kari over 14 years ago +1
    I'm somewhat new to the details of LVS myself, so I'm not sure how to explain it properly. I just know this is how we've always done it. I think it's because the fillers don't have any logical netlist…
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  • archive
    archive over 14 years ago

    Hi Kari,

    Im ruuning by command line only

    pvs -64 -lvs -gds clu.gds.gz -ascrdb clu.db -top_cell clu -spice clu.spi -verilog clu_lvs_new.vg -hcell hcell.txt -source_cdl sub.cdl -layout_top_cell clu -source_top_cell clu -sum clu.sum DFM_LVS_CAL_N65_ALRDL_noU_13b.7m | & teelog_file

    this is the command im using , im seeing in .cls file for mismatches i found all filler cells as mismatched in layout.but i opend the .gds file in virtuso there im seeing filler cells what might be the reason for mismatch of fillers?

    what is the best way to analyse and debug the lvs reports?

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  • archive
    archive over 14 years ago

    Hi Kari,

    Im ruuning by command line only

    pvs -64 -lvs -gds clu.gds.gz -ascrdb clu.db -top_cell clu -spice clu.spi -verilog clu_lvs_new.vg -hcell hcell.txt -source_cdl sub.cdl -layout_top_cell clu -source_top_cell clu -sum clu.sum DFM_LVS_CAL_N65_ALRDL_noU_13b.7m | & teelog_file

    this is the command im using , im seeing in .cls file for mismatches i found all filler cells as mismatched in layout.but i opend the .gds file in virtuso there im seeing filler cells what might be the reason for mismatch of fillers?

    what is the best way to analyse and debug the lvs reports?

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